V37 Models (PSAS) - Dynamic Air Compressor Services
Contents
1. Figure 3A Starter Assembly Fixed Speed ET ol E C3 22 7 Vl 26 uu 23 val TP O ololololo 16 17 A L 4 e Nia a 15 ses hh 0000 U rea 2 im ME 9 OS K3T ia E 10 14 435A344 34728 A Page 53 CompAir UK Ltd 3B Starter Assembly 37 kW 400 V 460 V 50 60 Hz RS Item Part Number Description Kit ei V37 34723 Starter assembly 1 75141 Enclosure modified 1 2 74906 Contactor 1 3 74371 Circuit breaker 1 4 56122 Relay K2A 1 5 74820 Timer K3T 1 6 Timer relay base 2 7 56105 Retaining clips pair 2 8 59344 OTC board 1 9 74024 Terminal double stack 10 10 74025 End section 2 11 Profle rail A R 12 Earth terminal 2 13 Trunking A R 14 75101 Inverter 37 kW 400 480 Vac 1 15 74026 Transformer 4AM13496 DEC80 1 FAO 1 16 Fuse 1 6A T IEC127 F2F 2 17 Chassi2. Figure 1C Servo Flow Control and Unloader Valve 435A330 Page 15 CompAir UK Ltd 1C Servo Flow Control and Unloader Valve Item Part Number Description Kit ei V37 33814 Unloader valve assembly 1 22 MCI50 Circlip internal 1 23 50113 Unloader valve cap 1 24 9806 O ring KM85 1 25 50035A Unloader valve piston letter stamped on piston 1 26 50243 Unloader valve spring 1 32334 Unloader stem assembly 1 27 57175 Valve stem 1 28 57176 Valve head 1 29 56950 Tension pin 1 30 50118 P T F E washer 1 31 50106 Front washer 1 32 MW8 M8 washer heavy gauge 1 33 MN1708 M8 nylock nut 1 34 9809 O ring KM85 1 35 50036 Unloader valve seat 1 36 MS706 16 741 M6 x 16 socket cap screw 2 Page 16 ST 16047A Servo Flow Control and Unloader Valve 11 1 ST 16047A 2 NE bi 9 22 N La CLIC 1C Figure 1C Servo Flow Control and Unloader Valve 435A330 Page 17 CompAir UK Ltd 1D Safety Valve Vacuum Relief Valve Intake End Cover Item Part Number Description Kit ei V37 32775 02 Intake end cover assembly 1 1 58740 02 Intake end cover 1 2 52403 Bearing 1 3 RO20000 80 Bronze bush part of item 1 1 4 TP1 Taper plug 1 8 BSP
3. 11 57596 1 Vacuum Seal Valve 1D 12 58253 1 O Ring 200 136 977 1G 13 59847 1 Seal Flow Control Valve 14 59854 1 Gasket O R P Cover 1E 15 70166 1 Blowdown Valve Filter 1C 16 9624 2 Bonded Seal 1 17 9646 1 Copper Washer 12 B 18 9717 1 O Ring 1E 19 9790 1 O Ring 1G 20 9804 1 O Ring 21 9805 1 O Ring 22 9806 1 O Ring 1C 23 9809 1 O Ring 1C 24 RO6000 330 1 Seating Washer 25 W4 1 1 Sealing Ring 1D 26 W7 2 1 Fibre Washer 27 ST15877 1 C4 Carton Plain KS84 Separator Kit 1 58798 1 Gasket Separator Ca 2 59180 3 Separator Element 128 158 1J 3 71191 1 Gasket Separator Cas 1J 4 BS84 1 Bag 128 148 178 845 5 3515C 1 Thermal Motor 6 71190 1 Gasket Separator Cover Plate 7 9605 2 Bonded Seal 5 16 8 9609 1 Bonded Seal 1 4 9 9619 2 Bonded Seal 3 4 1E 1J 10 9624 1 Bonded Seal 1 1E 1F 11 9748 3 O Ring 1H ST 16047A Page 3 CompAir UK Ltd Introduction Item Part Number Quantity Description Chapter Location KS84 Separator Kit continued 12 9753 2 O Ring 0166 24 13 9758 2 O Ring 0246 24 1H 14 9794 1 O Ring 1H 15 9795 1 O Ring 0275 30 1H 16 9802 1 O Ring 1H 17 ST15906 1 C6 Carton Plain KT87 Top Up Kit 1 33111 1 Seal Assembly 1K 2 50130 1 Jubilee Clip 10 5 Diameter 1K 3 56300 1 O Ring 1K 4 58789 03 2 Stator Gasket Intake 1K 5 58789 04 2 Stator Gasket Intake 1K 6 587 03 2 Stator Ga
4. 28 MWG 8 M8 spring washer 1 29 MS108 25 M8 x 25 hex head screw 1 30 59946 Oil filter KM85 1 31 RO10000 331 Grommet 1 32 32931 Thermistor cable assembly 1 Page 22 ST 16047A Bell Housing Arrangement 1F 435A333 Figure 1F Bell Housing Arrangement ST 16047A Page 23 CompAir UK Ltd 1G Minimum Pressure Valve Item Part Number Description Kit ei V37 1 58244 MPV housing 1 2 MS708 55 M8 x 55 socket head screw 4 3 1846 Oil return valve assembly KT87 1 4 58253 O ring KM85 1 5 59097 MPV spring 1 6 9790 O ring KM85 1 7 50078 MPV piston 1 8 59098 MPV return spring 1 9 50072 Shim 3 10 RO6000 331 Facing and stem 1 11 RO6000 330 Seating washer KM85 1 12 RO6000 329 Retaining washer 1 13 UCN 504 Nut 1 4 UNC Philidas 1 14 73212 Stud coupling Va x 4 1 Page 24 ST 16047A Minimum Pressure Valve 1G e o a m j sr Figure 1G Minimum Pressure Valve ST 16047A 435A334 Page 25 CompAir UK Ltd 1H Separator Manifold Item Part Number Description Kit ei V37 1 70045 Separator manifold 1 2 MS710 50 M10 x 50 socket head screw 2 3 9748 O ring KS84 3 4 9802 O ring
5. 3 75105 Motor stand V37 2 4 75158 Pipe oil outlet 1 5 75159 Pipe oil return 1 6 MS116 55 M16 x 55 hex hd screw 4 7 MW16 M16 washer 8 8 MWG 16 M16 spring washer 8 9 MN16 M16 nut 4 10 MS116 40 M16 x 40 hex hd screw 4 14 52744 Stud coupling 4 15 9624 Bonded seal 4 Page 38 ST 16047A Base Motor and Pipework 2A 435A356 Figure 2A Base Motor and Pipework ST 16047A Page 39 CompAir UK Ltd 2B Air End and Starter Fixed Speed Item Part Number Description Kit Di V37 1 83708 005 37 kW metric 60 Hz air end 1 2 74445 Label kit 1 3 75173 Bracket 1 4 34723 Starter 37 kW 460 V 60 Hz 1 4a 34728 Starter 37 kW 400 V RS 1 5 75174 Front cover starter 1 6 75154 Support 1 7 MS712 25 Cap hd screw 2 8 MWG12 M12 spring washer 2 9 MW12 M12 flat washer 2 10 MS710 20 Cap hd screw 2 11 MWG10 M10 spring washer 2 12 MW10 M10 flat washer 2 13 59292 Aftercooler pipe 1 14 53461 Stud coupling 2 15 9624 Bonded seal 2 16 53344 Lifting bracket 2 17 52573 M16 stud 8 18 MWG16 M16 washer spring 8 19 MN116 M16 hex nut 8 20 MW8 M8 flat washer 4 21 MWG8 M8 spring washer 4 22 MS108 20 M8 cap head screw 4 23 57375 01 Self tap screw 6 Page 40 ST 16047A ST 16047A Air End and Starter Fixed Speed T1 N oo o Figure 2B Air End and Start
6. 33 34 N 2 TT TT TT TT TT TT TT IT DI VI il 7 I Tee il OO LITET IT ILLAE T AONYA MANAHAN HAHAAHA AAY ii mN E N E A LA ANY I I I I 7 Iu U J LT TT ET LAAL US 21 20 Figure 2C Cooler Arrangement 19 ST 16047A CompAir UK Ltd 2D Cooler Arrangement Item Part Number Description Kit ED V37 22 75183 Fan 1 23 70943 Fan retainer 1 24 MS708 30 M8 x 30 cap head screw 4 25 MWGS8 M8 spring washer 4 26 MW8 M8 spring washer 4 27 MS708 20 M8 x 20 socket head screw 3 28 MWG8 M8 spring washer 3 29 MW8 M8 washer 3 30 1668 34 BSP drain plug 1 31 9619 Bonded seal 3 4 1 32 72997 U type retaining nut 3 33 73258 Fan guard extension 1 34 70686 Pop rivet 1 8 x 3 8 I 3 35 72191 Seal strip 1 6m Page 46 ST 16047A 2D Cooler Arrangement 7g 0i TT Ee ae de aa IL gee ma EEEEEEEEEEEEEEEE IE EE S ma LEEEEEEEEEEEEE EE EERS 33 34 435A355 Figure 2C Cooler Arrangement Page 47 ST 16047A CompAir UK Ltd 2E D O L Automatic and Regulated Speed Control aaa Quantity Item Part Number Description Kit V37 1 72118 Pressure
7. 837 001064 0210 onwards Terminology 8 Series 37 97kW motor size P Package S Standard control A Aftercooler S Starter 08 8bardelivery pressure 40 46 400 460 volt 3 3 phase 5 6 50 Hz 60 Hz D amp V Direct On Line Variable Speed 100 X European specification 50 Hz 105 US specification 60 Hz ST 16047A Page 1 CompAir UK Ltd Introduction OWNERSHIP RECORDS Model Number ise mee n dei mess SerialNumbetr uc s eee eR de Re Ka RPME ese E d mete vai dere KW ID ae Maximum Bar see Sarit er a ye Hee waren es Local CompAir UK Ltd Distributor N mer EE RE EO OR OR OE OER Ss T Reen tee fpiritu Ee ne Address eek SERE ER DEE EERS beh DE Ki Telephone sex en RR RES TUER Fax m PE ER SE RE EA ee Email EER EE Page 2 ST 16047A Introduction Service Kits Only use genuine CompAir UK Ltd parts and approved oils Oils must not be mixed Service kits contents Item Part Number Quantity Description Chapter Location KM85 Maintenance Kit 1 52438 1 Air Filter 178 218 2 1A 2 59842 1 Gasket MPV Housing 3 59946 1 Oil Filter 218 258 1F 4 59969 1 Gasket Oil Filter Ma IE 5 9902 1 O Ring 6 BM81 1 Bag 128 148 178 218 7 50055 1 Gasket 1D 8 50084 1 Gasket 1B 9 50118 1 P T F E Washer 10 52109 1 O Ring 1D
8. cee ARR 52 Starter Assembly 37 kW 400 V 460 VSO GOHZRS ee ee ee ee eee ee Boda 54 Starter Assembly Part Modifications liliis io 58 ST 16047A Page 51 CompAir UK Ltd 3A Starter Assembly Fixed Speed Item Part Number Description Kit ei V37 34728 Starter assembly 1 Enclosure 1 2 74906 Contactor 1 3 74907 Thermal overload 208 230V 1 4 74232 Circuit breaker 1 5 56121 Timer 1 6 56122 Timer 1 7 53494 Timer base 2 8 56105 Retaining clips pair 2 9 59344 OTC board 1 10 74024 Terminal double stack 6 11 74025 End section 2 12 Profile rail A R 13 Earth terminal 2 14 End section 15 i Trunking A R 16 Transformer 1 17 74027 Fuse 1 6A T IEC127 F2F 2 18 74067 Knob operator auto 1 19 74068 Indicator lamp reset 1 20 72708 Push button start 1 21 74080 Hours counter 1 22 74249 Emergency stop push button 1 23 s Rating label 1 24 74908 Terminal 3 25 74909 Earth terminal 1 26 75150 Facia label 1 27 75151 Label Model logo modify 1 28 75171 Label circuit diagram 1 29 End section 2 30 Motor conduit 1 31 Straight fitting 2 32 Locknut 1 Page 52 ST 16047A Starter Assembly Fixed Speed 24 25 29 ST 16047A 3A Et
9. and replace leakage examine rotor stator unit 37 Sne Hydrocarbon Dismantle compressor to High Dismantle clean and deposits examine oil passageways temperature oil rebuild passageways D Excessive Oil Consumption 4 1 Oil leaks bu ually check for external Identify source and rectify Compressor i Fit pressure gauge in test running at Excessive air 4 2 e point and check internal Rectify system leaks Minimum demand running pressure pressure i Remove sampis ana Drain flush drain fill with 4 3 Incorrect oil Service error compare with correct oil or fresh oil check source Check downstream If restrictor plugs are Flooded or equipment for signs of oil blocked remove and 4 4 Oil carryover broken contamination Remove oil replace separator Separators return restrictor plugs and elements and oil return check if blocked restrictors ST 16047A Page 67 CompAir UK Ltd 5 Fault Finding Ref Symptom cause cause Diagnosis Cause Action Level 1 Level 2 Level 3 If separator element are Remove separator cap broken Replace separator 4 5 and bottle and examine element oil return separator restrictors clean oil filter and change oil E Oil Mist From Air Intake When Stopping and or Rapid Venting Remove air filter and 54 Unloader valve support and observe Replace damaged seats seats damaged where mist exits when machine is stopping Remove air filter and Un
10. forward or reverse operation command Pressing the FWD or REV key lights the RUN lamp Invalid when the function code F02 Operation method is set at 1 External signal operation 9 Stop key In operation mode Stops the inverter Invalid when the function code F02 Operation method is set at 1 External signal operation 10 Function Data Select key In operation mode Changes the displayed values of LED monitor In program mode Selects the function code or stores the data ST 16047A Page 63 CompAir UK Ltd 4 Adjustments and Testing Inverter Data Index for V37 default setting default setting default hanged data only setting default L FOO TT JO PESO J29Hz 1 P09 JOOOHz FO2 1 JO FO 4 OS S EA EE F06 400 E24 CO 0 00Hz C06 O 00Hz A re i co poom R Hos 05s E3 pD JO co joo H6 RT ot Ko 98 pood Ha REN C0118 J0 O CTO w TOOOHz H28 QjooHu _ CO04 350 B O EER Po2 40 motorkW r34 JO G12 Joooz S Ha t PO0S 5 S motor FLC E55 OT w jJoonz Ha2 JO so POG 20 8 5 motorNLC C15 000u2 H34 1 P08 16 42 motor X_ C16 1 000u2 HBS OG TT Fa2 Ot OFZ f Asef OOS TT 1 TB ooo PAS AT TO C19 JOOOHz Ha81 OS OTT C20 5 000Hz H39 001s Ha2 700 HEG DEERE NEE Ci a sec
11. 37 9 58 1766 10 bar Factory settings Page 62 ST 16047A Adjustments and Testing 10 tmin m min kW X10 e v vv v v 1 9 435A352 Figure 4 5 Speed Control Unit Keypad 1 LED monitor In operation mode Displays the setting frequency output current voltage motor speed or line speed In trip mode Displays code indicating the cause of trip 2 Up Down keys In operation mode Increases or decreases the frequency or speed In program mode Increases or decreases function code number and data set value 3 Program key Switches the display to a menu screen or to the initial screen for operation mode or alarm mode 4 Shift key Column shift In program mode Moves the cursor horizontally at data change When this key is pressed with the UP or DOWN key the screen changes to the next function block 5 Reset key In program mode Cancels the current input data and shifts the screen In trip mode Releases the trip stop state 6 LCD monitor In operation mode Displays various items of information such as operation condition and function data Operation guidance which can be scrolled is displayed at the bottom In program mode Displays functions and data 7 Unit indication Displays the unit for the information shown on the LED monitor 8 FWD REV keys In operation mode Starts the inverter with
12. 55 Sight glass housing 1 16 9754 O ring 1 17 58117 Sight level glass KT87 1 18 58426 Sight glass clip KT87 1 19 50764 Spring 1 20 9717 O ring KT87 1 21 30152 Servo filter assembly 1 22 9619 Bonded seal 3 4 KT87 1 23 1668 Drain plug BSP 1 24 72360 Filler plug 1 25 9624 Bonded seal 1 KT87 2 26 72366 Symbolic label 1 Page 20 ST 16047A Oil Chamber Arrangement 1E Figure 1E Oil Chamber Arrangement ST 16047A Page 21 CompAir UK Ltd 1F Bell Housing Arrangement Item Part Number Description Kit Suay V37 1 70105 Bell housing 1 2 52030 Eye bolt 1 3 56447 Cover plate 1 4 MWG 6 M6 spring washer 2 5 MS106 12 M6 x 12 hex head screw 2 6 MS712 60 M12 x 60 socket head screw 6 7 MWG 12 M12 spring washer 6 33094 Thermal bypass assembly 1 8 53191 End cap 1 9624 Bonded seal 1 BSP KT87 1 10 MCI 22 Circlip 22 mm internal 1 30661A Bypass piston assembly 1 11 3515C Thermal motor 1 12 74141 Piston 1 13 52487 Spring 1 14 9794 O ring KS84 2 17 MS710 30 M10 x 30 socket head screw 2 18 MWG10 M10 spring washer 2 19 57996 Drain plug 3 8 1 20 9613 Bonded seal 3 8 1 33288 Oil filter manifold assembly 1 21 59969 Gasket KM85 1 22 70570 Oil filter manifold 1 23 70576 Stud 2 24 70575 Stud 1 25 9604 Bonded seal 1 4 3 26 70578 Cap nut 3 27 57816 Threaded insert 1
13. 6 5 TP2 Taper socket 1 4 BSP 1 6 73557 Gasket 1 7 9902 O ring 1 30011 Vacuum relief valve assembly 1 8 52109 O ring KM85 1 9 RO20000 225 Valve 1 10 57596 Vacuum valve seal KM85 1 11 RO20000 79 Spring 1 12 50055 Gasket KM85 1 13 50008 Vacuum relief valve cap 1 14 W4 1 Sealing ring 1 15 MN206 M6 lock nut 1 16 MS106 35 M6 x 35 hex head screw 1 17 MS706 16 M6 x 16 socket head screw 2 18 53399 Safety valve 150 PSI 1 19 9616 Bonded seal 1 2 KT87 1 20 MS708 30 M8 x 30 socket head screw 8 21 9605 Bonded seal 5 16 KT87 8 Page 18 ST 16047A Safety Valve Vacuum Relief Valve Intake End Cover 1D 435A331 Figure 1D Safety Valve Vacuum Relief Valve Intake End Cover Page 19 ST 16047A CompAir UK Ltd 1E Oil Chamber Arrangement Item Part Number Description Kit Suay V37 33965 Oil chamber assembly 1 1 72920 Oil chamber 1 2 MHC16 24 M16 x 1 5D helicoil 1 3 59425 04 Taper plug brass 1 2 BSP 1 4 MHC8 16 M8 x 2D helicoil 8 5 3554 Drain plug 1 BSP 3 6 9624 Bonded seal KT87 3 7 53452 Auxiliary baffle 1 8 52613 Self tapping screw 4 9 MS706 20 M6 x 20 socket head screw 2 10 50044 O R P cover plate 1 11 59854 Gasket O R P Cover plate KM85 1 12 71241 Oil restrictor plug 2 13 72832 Pressure gauge 63 mm 1 14 72822 Nameplate 1 33145 Sight glass assembly 1 15 598
14. 706 20 M6 x 20 socket head screw 7 4 71791 Flow control sleeve 1 5 TP1 Taper plug 1 8 BSP 2 6 52443 Tension pin 1 7 58865 M10 x 90 stud 1 8 50084 Gasket KM85 1 Page 12 ST 16047A Valve Housing 1B que 435A329 Figure 1B Valve Housing ST 16047A Page 13 CompAir UK Ltd 1C Servo Flow Control and Unloader Valve Item Part Number Description Kit Suay V37 33713 Servo valve assembly 1 1 MG708 30 M8 x 30 socket grub screw 1 2 MN108 M8 nut 1 3 71807 Servo valve end cap 1 4 50110 Spring support 1 5 RO6000 115 Servo spring 1 6 50105 Servo piston 1 7 59912 O ring 1 33003 Servo sleeve assembly 1 8 59597 Servo sleeve 1 9 3291 Tension pin 1 10 MG1706 6 M6 x 6 socket set screw tuflock 2 11 72197 Plug non return valve 1 12 70622 Non return valve spring 1 13 59650 04 Stainless steel ball 1 14 58962 Equal elbow M F 1 8 BSP 1 15 59014 Filter shroud 1 16 70166 Blowdown valve filter KM85 1 33817 Flow control valve assembly 1 17 ST10024 Locking wire A R 18 72189 Flow control valve plug 1 19 9617 Bonded seal 5 8 1 20 50116 Flow control valve piston 1 21 50115 Spring 1 Page 14 ST 16047A Servo Flow Control and Unloader Valve 11 1 ST 16047A 2 NE bi 9 22 N La CLIC 1C
15. 74050 Fan unit 1 36 74051 Finger guard external 1 37 74052 Finger guard internal 1 38 75142 Gland plate 1 39 75143 Gasket for item 38 1 40 75144 Baffle inverter cooling 1 41 75145 Foam baffle inverter cooling 1 42 Motor conduit 1 43 Straight fitting 2 44 Locknut 1 45 72118 Pressure transducer 1 46 73245 Female bulkhead connector BSP 1 47 M8 x 25 long hex head set screw 6 48 s M8 hex locknut 6 49 M8 spring washer 6 50 M8 washer 8 51 52057 Lifting bracket 2 52 M12 x 30 long cap head screw 2 53 M12 hex nut 2 54 M12 spring washer 2 55 lt M12 washer 4 56 75151 Label model logo V37 RS 4 57 E Blind grommet not shown on drawing 2 58 Perspex window inverter read out 1 59 75051 End section earth 1 60 End section 35 mm terminals 2 Page 56 ST 16047A Starter Assembly 37 kW 400 V 460 V 50 60 Hz RS 3B 25 26 29 33 60 8 9 12 59 23 4 7 51 55 41 435A346 34723 A F
16. E EE OR dots IE n pueros ER a 0 SA 69 Motor Overload or High Power Consumption ie Ee EE Se ee eee EE 69 ST 16047A Page 65 CompAir UK Ltd 5 Fault Finding WARNING READ HEALTH AND SAFETY PRECAUTIONS BEFORE YOU START ANY SERVICE WORK Servicing of the compressor must only be carried out by authorised persons fully trained and competent in the maintenance of CompAir UK Ltd compressors They must fully understand and adopt correct and safe working practices V37 Troubleshooting Chart Cause Cause Cause Ref Symptom Diagnosis Action ymp Level 1 Level 2 9 Level 3 A System Pressure Low Demand Air leaks in Audible check for air leaks 1 1 exceeds MS 1 Identify and rectify leaks air line system or time pressure decay capacity Low output 1 2 from See B compressor B Low or No Air Delivered By Compressor 2 1 Compressor Motor not Visual check of cooling fan C MCI Restore supply not rotating running supply failure System pressure switch Repair pressure switch fault x Remove grommet from Drive coupling Mechanical bell housing and visually Replace coupling failure breakdown check coupling Correct motor direction Compressor Visual check of cooling fan E Lr Rds Motor wiring Note that compressor will 2 2 rotating in against direction arrow on v reversed be damaged if run in reverse compressor reverse 23 Motor sp
17. KS84 1 5 9794 O ring KS84 1 6 58607 Advel seal 5 mm diameter 1 7 58796 Separator bolt air 1 8a 70538 01 Shim separator bolt 0 125 A R 8b 70538 02 Shim separator bolt 0 190 A R 8c 70538 03 Shim separator bolt 0 317 A R 9 9795 O ring KS84 1 10 70051 Separator bolt oil 1 11 9758 O ring KS84 2 32972 Blanking plate assembly 1 12 71190 Gasket separator cover plate 1 13 71584 Blanking plate 1 14 59244 Dial thermometer 1 8 15 MS706 25 M6 x 25 socket head screw Page 26 ST 16047A Separator Manifold 1H 435A336 Figure 1H Separator Manifold ST 16047A Page 27 CompAir UK Ltd 1J Separator Case Item Part Number Description Kit Suay V37 1 71191 Gasket KS84 1 2 70046 Separator case 1 3 70071 M8 washer 16 4 MWG8 M8 spring washer 16 5 MS708 35 M8 x 35 socket head screw 16 6 9619 Bonded seal 3 4 KS84 2 7 1668 Drain plug 34 BSP 2 8 59180 Separator element KS84 3 9 9799 O ring part of item 8 3 10 58801 Separator element stud 3 11 59551 Oil scavenge pipe 1 Page 28 ST 16047A Separator Case 1J d L 435A337 Figure 1J Separator Case ST 16047A Page 29 CompAir UK Ltd 1K Rotor Stator Unit with Reed
18. Parts List Service Manual V37 Models PSAS Stationary Air Compressors ST 16047 Iss A 08 2002 This page is intentionally left blank Introduction Introduction This publication contains parts lists and service information please read it carefully before you attempt to service or carry out adjustments on the compressor This publication should be used in conjunction with the User Handbook Note f you need any specialist help or service please contact your distributor or CompAir UK Ltd quoting the MODEL TYPE and SERIAL NUMBER Product development CompAir UK Ltd adopt a policy of continual product Improvement The information in this publication whilst fully up to date when issued may be subject to change without notice Quality standards CompAir UK Ltd Quality Management Systems are approved to BSENISO 9002 Note These instructions comply with the stipulation of European directive 98 37 EEC concerning machine safety and are valid for machines carrying the CE label CompAir UK Ltd Claybrook Drive Washford Industrial Estate Redditch Web www CompAir com Worcestershire E mail sales compair com B98 ODS Telephone 01527 525522 England Fax 01527 521140 Model range This handbook relates to all V37 kW 50 60 Hz compressors model types V37 837PSAS08 4035V100 837PSAS08 4636D105 This publication refers to compressors with serial numbers 837 000976 0210 onwards
19. Secure lock nut D Refit air filter A and cover B 435A347 Figure 4 1 Minimum Pressure Valve and Safety Valve Lift Pressure 435A348 Figure 4 2 Servo Valve Page 60 ST 16047A Adjustments and Testing 4 D Oil Temperature e Introduce a small amount of oil and a thermometer into the thermometer pocket Allow compressor to run for 30 minutes in order to attain its normal working temperature Average running temperature should be 85 C approx Refit filler plug and its seal when testing is completed Average running temperature should be approximately 50 C above ambient E Air Output Fig 4 4 e Screw test nozzle into compressor outlet valve Close outlet valve and start compressor Open outlet valve fully to atmosphere 435A349 Pressure indicated on the compressor gauge should not fall below 7 5 bar 8 bar compressor Figure 4 3 Vacuum Relief Valve Test nozzle diameter must be reamed to a tolerance of 0 025 mm F Leakage Check Examine all external seals gaskets and pipe connections for air or oil leakage Noleaks are permissible G Setting the Run On Timer located in Starter Box e The run on timer sets the required duration of off load running after which the compressor will stop e The timer is factory preset to 2 minutes standard control 3 minutes electronic control below 3 minutes constant r
20. Valve Assembly Item Part Number Description Kit Suay V37 1 58759 Drilled blade 50 and 60 Hz 24 4 58754 Rotor 1 5 MS710 35 M10 x 35 socket head screw 4 6 MWG10 M10 spring washer 5 7 MS710 90 M10 x 90 socket head screw 1 8 MS708 80 M8 x 80 cap head screw 2 9 MWG8 M8 spring washer 2 10a 58789 03 Stator gasket intake end 0 05 mm blue trans A R 10b 58789 04 Stator gasket intake end 0 08 mm green A R 11 9902 O ring KT87 1 34164 04 Stator assembly 83708 60 Hz 1 12 73426 04 Stator 837K08 60 Hz 1 13 HD75120E5 Drive rivet 5 16 x No 6 6 14 MG1706 6 M6 x 6 socket set tuflock 2 15 70219 Valve seating bush 1 16 RO20000 105 Valve plate 1 17 57492 Valve washer 1 18 MS705 10 M5 x 10 socket head screw 2 34271 Reed valve assembly 6 19 MS705 10 M5 x 10 socket head screw 1 20 MWI5 Shakeproof washer 1 21 73700 Valve guard 1 22 73198 Reed valve 1 Page 30 ST 16047A Rotor Stator Unit with Reed Valve Assembly 1K id So 55 SY 435A338 Figure 1K Rotor Stator Unit with Reed Valve Assembly ST 16047A Page 31 CompAir UK Ltd 1K Rotor Stator Unit with Reed Valve Assembly Item Part Number Description Kit ei V37 23a 58790 03 Stator gasket intake end 0 05 mm trans blue KT87 A R 23b 58790 04 Stator gasket intake end 0 08 mm green KT87 A R 23c 58789 06 Stator shi
21. alve Start compressor continuous run e Screw in servo until safety valve A lifts Gauge pressure should be 10 bar e If lift pressure is incorrect replace valve complete C Servo Valve Fig 4 2 The servo valve controls pressure at a pre set factory setting when there is no demand for air The specified setting is a maximum and must not be exceeded Factory setting 8 bar models 8 5 9 0 bar If the servo needs minor adjustments or a lower pressure is required then carry out the following procedure Turn mains electrical supply on at isolator Close air outlet valve to air line system and open test valve Fitsilencer to test valve Select continuous run mode and start compressor Adjust test valve so that the air end pressure gauge reads approx 8 0 bar and allow compressor to warm up After approximately 10 minutes close the test valve and stop compressor Remove air filter cover A and air filter B Release servo lock nut D e Check test valve and air outlet valve are closed Start compressor and allow pressure to stabilise e Check compressor pressure gauge reading If reading too low turn grub screw E clockwise to increase pressure Note Must not exceed 9 0 bar If reading too high or a lower operating pressure is required turn grub screw B counter clockwise to decrease pressure e Open and close the test valve and check that pressure stabilises at required setting
22. cap screw 2 14 72314 Drive coupling compressor 1 15 MW30 M30 washer 1 16 52421 M30 dri loc nut 1 17 72316 Drive element KT87 1 18 MG710 25 M10 x 25 grub screw 2 19 72315 Drive coupling motor 1 Page 34 ST 16047A Drive End Arrangement 1L L i um 435A339 Figure 1L Drive End Arrangement ST 16047A Page 35 CompAir UK Ltd 1M Air End Part Modifications Air End Part Modifications Serial No Prefix Compressor s Ref New Part s Old Part s Service Bulletin Page 36 ST 16047A Main Assembly Chapter 2 Contents Section Page Base Motor and PIPEWOrK vie AE RE Een d oce peres eer Rg Bis Sans 38 Air End and Starter Fixed Speed EE EE Se EE Se eg ee ee ee see ee B ETA 40 Air End and Starter RS aa R 9 0 A RR ar n ER Rose N Sa DEd ED UM E Cis sund ES Ng 42 Gooler Arrangements ui HER REED EE RR DE Sr GR R Z BEE SEE RE RE EN Dirse 44 D O L Automatic and Regulated Speed Control EE EE EE ee ee UC 48 Main Assembly Part Modifications x c x x K x e x K eee Ea osse ed 50 ST 16047A Page 37 CompAir UK Ltd 2A Base Motor and Pipework Item Part Number Description Kit Suay V37 1 75083 10 Motor 37 kW 400 V 50 Hz 1 2 75104 Base V37 1
23. e Silkolene 660 Motor Grease Esso Unirex N3 Shell Albida R2 Shell Nerita HV SKF LGHQ3 Castrol Optimol PD2 Torque settings Listed below are recommended torque settings Note Torque settings must be applied when indicated Torque Settings Thread Size mm Setting Nm 6 15 8 35 10 60 12 95 16 160 42 400 ST 16047A Page 5 CompAir UK Ltd Introduction This page is intentionally left blank Page 6 ST 16047A Contents Parts List and Service Manual Contents Chapter Page AE EE OE OR OE IE N RE DE jr 9 Maim ASSembly desde asagn Xin eb scere GEE a RU dte RE he 37 Starter Assemblies ss ee boda RE Ere Same ee BE Meee DAE K Gee EE CERE ME ee ba 51 Adjustments and Testing ss esse FEE ER dre ie ve ae Ge mera Marna enn Aish eng Satie 59 Faul EiNAIMO aderit ST OZ En Base ok ee Ad TEE L RRR el fede nar Re anaes EE hana 65 ST 16047A Page 7 CompAir UK Ltd This page is intentionally left blank Page 8 ST 16047A Compressor Air End 1 Chapter 1 Contents Section Page Alrlntake Filtef si ses Orbe er arr DE RUE AT met ee er de ds PA ge Bape nera 10 Valve HOUSINGE ce ere em bade m Ree 9r Eee ERR RP Ep Di E ee Boss ENE be 12 Servo Flow Control and Unloader Valve 0 SS SS SS eee eee e NP 14 Safety Valve Vacuum Relief Valve Intake End Cover ee Ee Ee Ee ee ee p see RE erpi 18 Oil Chamber Arrangement na
24. eed Check motor speed with Electrical Check speed and rectify l low optical tachometer supply fault supply Intake filter Heavy BIS Mount ate DRSI and Environmental M 24 check for presence of ef Replace air filter blocked contamination conditions excessive dirt Maintenance Replace air filter failure Check for short loud Safety valve pressure release from lifting behind air filter and oil on See G air filter Minimum Adjustment a pressure gauge and Service error or S 2 6 pressure valve incorrect follow adjustment Sprida Wear Adjust MPV closed procedure pring Read pressure gauge If Valve jammed no outp t from Mechanica Replace MPV compressor remove MPV failure and examine Follow adjustment procedure If rated Servo set too Adjustment pressure cannot be ui low incorrect achieved inside Service error Adjust servo compressor remove and change spring Servo spring Check length against new Replace spring and adjust worn or broken spring Read pressure gauge If 28 Oil separation Separators 1 bar remove separator Contamination Replace separator and i system blocked blocked cap and bottle and return restrictors examine Page 66 ST 16047A Fault Finding Cause Cause i Cause i Ref Symptom Diagnosis Action ymp Level 1 Level 2 g Level 3 Read pressure gauge If Oil return Separator 1 bar remove separator Re
25. er Fixed Speed 435A354 Page 41 2B CompAir UK Ltd 2C Air End and Starter RS Quantity Item Part Number Description Kit V37 16 75152 Support RS 1 17 75153 Tie brackets RS 1 18 MW12 M12 plain washer 8 19 MWG 12 M12 spring washer 8 20 MS112 25 M12 x 25 hex hd screw 8 21 MN112 M12 hex nut 2 22 MWG8 M8 spring washer 2 23 MN108 M8 hex nut 2 Page 42 ST 16047A Air End and Starter RS 2C 435A359 Figure 2B Air End and Starter ST 16047A Page 43 CompAir UK Ltd 2D Cooler Arrangement Item Part Number Description Kit n V37 2 MS112 35 M12 x 35 hex head screw 4 3 MW12 M12 washer 8 4 58837 01 Radiator duct spacer 5 mm thick 2 5 MWG12 M12 spring washer 4 6 MN12 M12 nut 4 10 73070 Fan coupling 1 11 MG710 10 M10 x 10 Skt grub screw 2 14 53461 Stud coupling G1 x 25 mm 2 16 57375 01 Self tapping screw 6 17 71027 Aperture cover 1 18 73583 Spire nut 6 19 75161 Fan guard 1 20 75160 Cooler duct 1 21 72759 Combination cooler 1 Page 44 ST 16047A 2D Cooler Arrangement 27 Page 45 35 24 25 26 Qu 28 31 29 435A355 AN a ut a N WE e lt X EN A DS EE NI Pd
26. ga eines wee hee Ee EE RE H vas RR EER T 5 Eseg dg 20 Bell Housing Arrangement iese ese se se sek ee se se eed n nn LET TEE 22 Minimum Pressure Valve ss trem rete es EE DEE ER dad weed Pee ee 9 Qi cores 24 Sepairator Manifold sensas eod ei er RE ueber ae ar e Putin ldem EE 26 Separator Gasse ETE al cts ee Ed 28 Rotor Stator Unit with Oil Relief Valve Assembly EE EE eee ee eee is eie od esms 30 Drive End Arrangement ss eis eg RE RE eee RE ease Re ES RE RUE bie anne bragende 34 AI End PartiModificatioh sr e leto ete Ret d e e R ecd S PERO 36 ST 16047A Page 9 CompAir UK Ltd 1A Air Intake Filter Item Part Number Description Kit dend V37 1 73147 Nut protection cap 1 2 MN1710 M10 Nylock nut 1 3 W7 2 Fibre washer 1 4 52437 Filter cover 1 5 59604 Air filter cover spacer 1 6 MW10 M10 washer 1 7 52438 Air filter KM85 1 8 58856 Intake filter support 1 Page 10 ST 16047A Air Intake Filter 1A fes PEN d oo H MC 435A328 Figure 1A Air Intake Arrangement Page 11 ST 16047A CompAir UK Ltd 1B Valve Housing Item Part Number Description Kit Suay V37 33818 Unloader housing assy 1 72334 Unloader housing 1 2 50707 Insert with item 1 1 3 MS
27. h a maximum speed may result in an electric motor overload condition Refer also to user warning above Ensure that power is available at the compressor e If amber reset lamp r is illuminated press reset button 1 Turn the selector switch from position 1 to position O Unlock keypad see below Press PRG key to obtain the program menu Select program 2 Data check using Up Down keys Select function F03 using Up Down keys Press the Function Data key to select the frequency Hz setting e The current frequency setting will be displayed in the LCD monitor window Note that the right hand digit will be flashing e Press the Up Down key to decrease or increase the frequency setting Refer to chart below Pressthe Function Data Select key to store the new setting Press PRG key to return to the LED monitor Pressthe Function Data Select key until the required LED display appears e g motor speed e Re lock keypad see below Unlocking keypad Press PRG key to obtain the program menu Select program 2 Data check using Up Down keys Select function code FOO Function Data key will highlight a value of 1 Change value 1 to 0 by pressing the Down and Stop keys together Press the Function Data key to store Re locking keypad Press PRG key to obtain the program menu Select program 2 Data check using Up Down keys Select function code FOO Function Data key will h
28. ighlight a value of 0 Change value 0 to 1 by pressing the Down and Stop keys together Press the Function Data key to store Continuous running option If the flow demands of the system result in continual and rapid stopping and starting of the motor the compressor speed control unit may be set to continuous running as follows Ensure that power is available at the compressor e If amber reset lamp r is illuminated press reset button 1 Turn the selector switch from position 1 to position O Unlock keypad see above Press PRG key to obtain the program menu Select program 2 Data check using Up Down keys Select function F16 using Up Down keys e Press the Function Data key Press the Up Down key to select value 35 Pressthe Function Data Select key to store the new setting Press PRG key to return to the LED monitor Pressthe Function Data Select key until the required LED display appears e g motor speed e Re lock keypad see above Note If this option is selected the compressor will continue to operate under speed control achieving energy savings compared with single speed compressor operating at part load Maximum pressure frequency combination settings Setting F03 max output frequency Nominal off load Servo pressure Compressor Operating model pressure Synchronous speed V37 6 62 1858 7 bar V37 7 61 1820 8 bar V37 8 60 1800 9 bar V
29. igure 3B Starter Assembly 37 kW 400 V 460 V 50 60 Hz RS ST 16047A Page 57 CompAir UK Ltd 3C Starter Assembly Part Modifications Starter Assembly Part Modifications Serial No Prefix Compressor s Ref New Part s Old Part s Service Bulletin Page 58 ST 16047A Adjustments and Testing Chapter 4 Contents Section Page Minimum Pressure Vale sitem ceca re oner Gated OE eleg ee Basses 62 Safety Valve Lift Pressure Ee Ee ES Ee Ee en Bone seen 62 Servo EA OE EE OE haw ae EE deg re SERE RE 62 Oil Temperature ss si oh LER rode oe QU o REDE SEE RE RR EE ed EE BEE 63 Air OUUTE Sas TP 63 Leakage Check ESE RE xcu LEE RE SE eR Ee E E CP dE Fosen 63 Settirig the RUN On TIME ndr ure Re E RR MR ele ER EER Gir sete 63 Testing Vacuum Relief Valve exe e se se ee eee II 0 TA 63 RS Speed Compressors twine leek BE EE abr ER Re ie RE SEEN RR REPE SE EE HS 64 ST 16047A Page 59 CompAir UK Ltd 4 Adjustments and Testing A Minimum Pressure Valve Fig 4 1 Start compressor Open outlet valve fully to atmosphere e Check the lowest pressure gauge reading obtainable This should be 5 2 5 5 bar Adjust pressure by increasing or decreasing the number of shims B in valve B Safety Valve Lift Pressure Fig 4 1 Close outlet v
30. loader valve support and observe Replace unloader valve 5 2 A body worn where mist exits when body machine is stopping Remove air filter and Vacuum valve support and observe Replace Vacuum valve 5 3 seal leaking where mist exits when seal gasket machine is stopping Remove air filter and 5 4 sene valve Support and peels Replace servo valve leaking where mist exits when machine is stopping Remove air filter and Bearing end support and observe Replace bearing end cap 5 5 cap gasket R where mist exits when gasket leaking S machine is stopping F Unusual Noise or Vibration During Running Vacuum valve Compressor makes 6 1 incorrectly rattling noise when Adjust vacuum valve adjusted running off load only 62 Fan fouling Visually check for Check realign ducting cooler ducting inteference Remove grommet from Damaged worn bel housing and visually Check replace motor 6 3 c check coupling Remove drive coupling coupling compressor from motor to verify Listen for rumbling or screaming noise from 64 Motor bearing each end of motor Check replace motor failure Remove compressor and bearings rotate motor by hand to check for rough feeling Listen for uneven popping Seized blade in noise from compressor 6 5 alot under load Remove intake Check free replace blades end cover to check condition of blades G Safety Valve Lifting 7 1 Overpressure Servo nan Read pressure gauge Adjust servo in compressor high Servo piston Remove ser
31. m smoke blue 0 13 A R 23d 58789 05 Stator shim amber 0 10 A R 23e 58790 05 Stator shim amber 0 10 A R 24 9896 O ring KT87 2 25 9894 O ring KT87 1 26 9607 Bonded seal 0 4 KT87 6 27 MS710 35 M10 x 35 socket head screw 5 28 MS708 35 M8 x 35 socket head screw 2 29 9605 Bonded seal 5 16 KT87 2 30 50130 Jubilee clip 10 5 diameter KT87 1 31 72136 Cowl 1 32 MS106 12 M6 x hex head screw 6 33 MWG6 M6 spring washer 4 34 MW6 M6 washer 6 Page 32 ST 16047A Rotor Stator Unit with Reed Valve Assembly 1K id So 55 SY 435A338 Figure 1K Rotor Stator Unit with Reed Valve Assembly ST 16047A Page 33 CompAi 1L r UK Ltd Drive End Arrangement Item Part Number Description Kit Suay V37 1 50050 Woodruff key 1 32776 Drive end cover assembly 1 2 58727 Drive end cover 1 3 52403 Bearing 1 4 59425 02 Taper plug brass 1 4 BSP 1 5 MS705 16 M5 x 12 socket head screw 12 long 2 6a MW5 M5 washer plain 2 6b MWG5 M5 spring washer 2 6c MN105 Nut hex M5 2 7 33348a Terminal block assembly 1 7a 70844 Terminal block 7b 70857 Terminal block 8 9607 Bonded seal 0 4 KT87 6 9 70154 Thermistor probe 110 C 1 10a 33110 Oil seal assembly original 1 10b 33111 Oil seal replacement KT87 1 11 9811 O ring KT87 1 12 MWG6 M6 spring washer 2 13 MS706 16 741 M6 x 16 socket
32. p o AA IO 0 E42 39 J C22 Jo0osri AOT amp JS0Hz R H24 la 0 00s E05 J4 J C23 Jo00sri A02 j50uz AO 5 motor FLC E06 1 J C24 9 Joo0osri A03 j40V MX A11 40 motorkW E07 16 1 c25 Jooosri j AO 9 40V A12 75 3 motor AC E8 J C26 J10 00sr7 AOS JO J A15 208 motor ALC LEES mas n 4 9 995 F1 A06 maa an ANG 2G motor R C28 jO 00sF1 LAT 16 42 motor x c30 p A08 X Moon CCC Ei2 pt00 4X CS31 0 00 AO9 TO 9 j p oo Ei35 100 Cc32 100 a0 l 1 4 Ei4 j100 C33 JO05s LES p00 J 4j PEI 190 POT AAS 10 LL L A18 jOoO0z j 435A357 Page 64 ST 16047A Fault Finding Chapter 5 Contents Ref Page System pressure Ee eie dared RR EE vee X vede epe EUR f p 66 Low or No Air Delivered by COMpressor 00 cece ee ett B emne 66 High Temperature s serg ee Der RE Ub e Ue RR E E bac Cis EE dean 67 Excessive Oil Consumption 2 sy DER Ie een BR es eed ad geek pd Dis sx stets 67 Oil Mist From Air Intake When Stopping and or Rapid Venting ME 68 Unusual Noise of Vibration oum oret Ee eA I eh eod PC ea EE 68 Safety Valve LING rer ELE DR dla ur EE ede Xu iun ete DE ENL 3 TRE Qo serene 68 SIOW NO MVentdOWR x 2 3t O
33. place separator and mU restrictors flooded with oil cap and bottle and return restrictors blocked examine Compressor will run very 29 Rotor blades Blades stuck in quietly without producing Oil too thick Check replace oil not extended rotor air and no air will be sucked in through inlet Remove intake end cover to inspect condition of Blades seized Free blades slots rotor and blades Internal air 240 isake in Shim breakdown Dismantle compressor to Check temperature flow examine rotor stator unit and power compressor Replace stator shims C High Temperature 3 1 Oil level low Incorrectly filled Drain and replace Olle overflow Oil leaks Visually check for external Repair leaks drain and oil new oil Check downstream Oil carryover equipment for signs of oil See D contamination 32 Dirty blocked Visually examine cooler Clean cooler drain and cooler matrix matrix for excessive dirt new oil Remove thermal motor and examine If wax has 33 Thermal Damaged leaked or piston rod is Replace thermal motor bypass failure thermal motor loose it is rejected Check drain and new oil function of piston in hot water 90 C 34 Dirty blocked Oil Remove filter and visually Drain oil clean filter fill Oil filter contamination check condition with fresh oil Remove speen Drain flush drain fill with 3 5 Incorrect oil Service error compare with correct oil or fresh oil check source 3 6 iier ai Damaged shims Dismantie compressor 9 Dismantle
34. s plate 1 18 74067 Knob operator auto 1 19 74068 Indicator lamp reset 1 20 72708 Push button start 1 21 50432 Hours counter 1 22 74249 Emergency stop push button 1 23 s Rating label 1 24 74043 Power outlet socket 1 25 Terminal P1 P blue 35 mm 2 26 74909 Earth terminal 1 27 75150 Facia label 1 28 75107 Label circuit diagram 1 29 74908 Terminal L1 L2 L3 1 30 75146 Filter grid c w filter 2 31 75102 EMC filter 1 Page 54 ST 16047A Starter Assembly 37 kW 400 V 460 V 50 60 Hz RS 27 3B Raa nel fanme l 28 V37 RS 80 34 58 s O 35 37 20 ml 19 47 50 38 dec 9 ja RO Alll lcdJ i m 47 50 Hro R oF LEAF T 435A345 34723 A Figure 3B Starter Assembly 37 kW 400 V 460 V 50 60 Hz RS ST 16047A Page 55 CompAir UK Ltd 3B Starter Assembly 37 kW 400 V 460 V 50 60 Hz RS Item Part Number Description Kit ei V37 32 75103 DC choke 1 33 74864 End bracket 1 34 75149 Filtering panel 1 35
35. sket Drive 7 587 04 2 Stator Gasket Drive 8 72316 1 Drive Element 1K 9 72832 1 Pressure Gauge 63 mm 10 73557 1 Gasket I E C 8 Series 11 9894 1 O Ring 1K 12 BT8 1 Bag 128 148 178 218 13 1846 P 1 O R V Filter Assembly 14 1846 1 O R V Filter Assembly 1G 15 1728 1 O R V Filter Nut 16 3416 1 Oil Return Valve Filter 17 58117 1 Sight Level Glass 1E 18 58426 1 Sight Glass Clip 1E 19 9605 10 Bonded Seal 5 16 1K 20 9607 8 Bonded Seal 40 1K 21 9613 2 Bonded Seal 3 8 22 9616 1 Bonded Seal 1 2 1D 23 9619 1 Bonded Seal 3 4 1E 24 9624 3 Bonded Seal 1 1E 1F 25 9703 1 O Ring 26 9708 1 O Ring 27 9754 1 O Ring 1E 28 9792 2 O Ring 29 9794 2 O Ring 1F 30 9811 1 O Ring 1K 31 9896 2 O Ring 1K 32 ST15877 1 C4 Carton Plain Note Spare parts to be stored in original packaging and in a dry environment Repaired or replacement units should be protected against corrosion and mechanical damage during storage Page4 ST 16047A Introduction Key to symbols used GE N N 3 3 15 Nm Torque Setting Nm Sil E 660 Grease Required Specification 577 Loctite Required and Specification Number D Lubricate With Sump Oil Spanner Required mm A F 5mm Allen key Required mm Recommended Oils CD Fluid Force Clear Fluid Force 2000 Fluid Force HPO Note Do not mix oils Recommended Greas
36. t Listen for uneven popping noise from compressor under load Remove intake end cover to check condition of blades Check free replace blades 9 5 Compressor rotor seizing Rotor pushed against intake end cover Remove compressor dismantle and examine rotor and end cover Check setting of coupling Motor drive coupling incorrectly fitted Replace damaged parts Bearing seizing Remove compressor dismantle and examine rotor and bearings Lubrication failure Replace damaged parts ST 16047A Page 69 CompAir UK Ltd 5 Fault Finding This page is intentionally left blank Page 70 ST 16047A
37. transducer RS n 2 53287 Pressure switch Standard only 1 3 ST214671 Tube 6 mm nylon A R 4 74866 Solenoid valve N O 1 4a 70793 Hex nipple 1 4b 73283 Elbow 1 5 73212 RP1 4 6 mm push in A R Refer to RS Starter Assembly in Section 3 Page 48 ST 16047A D O L Automatic and Regulated Speed Control 2E PRESSURE TRANSDUCER V37 RS sd EIE REGULATED SPEED PRESSURE SWITCH D O L AUTOMATIC B CONTROL A Separator Pressure B Delivery Pressure in MPV C Blow down return to intake c 435A343 Figure 2D D O L Automatic and Regulated Speed Control ST 16047A Page 49 CompAir UK Ltd 2F Main Assembly Part Modifications Main Assembly Part Modifications Serial No Prefix Compressor s Ref New Part s Old Part s Service Bulletin Page 50 ST 16047A Starter Assemblies Chapter 3 Contents Section Page Starter Assembly Fixed Speed
38. un but may be reset to suit the individual air system Note Do not set the timer to less than 30 seconds For guidance each division between the marks S short delay and L long delay on the timer represents approximately one minute delay time 435A350 H Testing Vacuum Relief Valve Fig 4 3 Figure 4 4 Test Nozzle 59636 00 Close air outlet valve and start compressor Open and close outlet valve If rattle is heard when outlet valve Nozzle orifice Model Bar CEM is closed adjustment of vacuum relief valve is necessary Stop Dia A compressor 8 305 mm V37 8 94 3 Remove air intake filter and filter support Slacken nut 1 Screw adjuster screw 2 fully in DO NOT TIGHTEN Unscrew adjuster screw 2 two turns Close outlet valve Start compressor Adjust screw 2 until rattle is eliminated then tighten nut 1 ST 16047A Page 61 CompAir UK Ltd 4 Adjustments and Testing I RS Speed Compressors Target Pressure Setting Fig 4 6 The system target pressure may be adjusted by pressing the up arrow on the keypad to increase pressure or down arrow to decrease pressure The pressure is indicated on the keypad LED display with the required pressure in view press the FUNC DATA key to store Speed control unit frequency setting If the default factory pressure setting is altered the compressor motor maximum speed must also be adjusted Operating at too hig
39. vo assembly l Reassemble servo and incorrectly and check orientation of i adjust assembled piston Excessive Air c i Leaking Replace vacuum valve intake during Read pressure gauge E vacuum valve seals and gasket offload running Leaking bearing cap Replace end cap gasket gasket Page 68 ST 16047A Fault Finding Ref Symptom Cause Level 1 Cause Level 2 Diagnosis Cause Level 3 Action Leaking unloader valve Replace unloader valve seat 1 2 Faulty safety valve Worn spring Read pressure gauge in test point and check internal pressure when safety valve blows Replace safety valve Damaged worn seating Fit pressure gauge in test point and check internal pressure when safety valve blows Replace safety valve Slow No Ventdown 8 1 Automatic Ventdown orifice blocked Listen for air loss into intake area after stopping Fit pressure gauge in test point to monitor vent down of pressure Clean orifice plate Motor Overload or High Power Consumption 9 1 High pressure setting Fit pressure gauge in test point and check internal pressure Check adjust servo 9 2 Compressor overheating Fit thermometer in oil filler pocket and check maximum temperature See C 9 3 Faulty motor Check impedance of motor windings Check motor windings bearings repair or replace 9 4 Seized blade in slo
Download Pdf Manuals
Related Search